When Utrecht astronomy
moved in 1987 from Sterrewacht
Sonnenborgh
to the
Buys Ballot Laboratory
in campus
"De Uithof", at my suggestion it renamed itself "Sterrekundig
Instituut Utrecht" (SIU). The classical spelling was maintained when
the official spelling changed later to sterrenkundig, just as in
"Sterrewacht Leiden", because spelling changes should not affect given
names. (I prefer the singular anyhow because one star suffices for a
lifetime of astronomical research.)